| abstract |
After converting carbon dioxide, a carbon source, into biomass by photosynthesis of photosynthetic microorganisms, there is provided a series of biofuel production methods including a technique for producing biofuels. The biofuel production method according to the present invention includes a culture step (S1) of culturing a photosynthetic microorganism that accumulates fats and fats and carbohydrates in a cell with a culture medium, and a carbohydrate accumulated in the cells of the photosynthetic microorganism cultured with the culture medium. It comprises a maintenance process (S2), the extraction process (S3) which extracts fats and oils in the cell of said photosynthetic microorganism, and the reforming process (S4) which reforms the extracted fats and oils. |